With their forties upon them, a group of men battles their mid-life crisis in an unusual way: joining a synchronized swimming team under the tutelage of a former champion, Delphine.
Bertrand is an unemployed man who wastes his time playing Candy Crush, when one day he stumbles upon an ad for a male swimming team that's looking for new members under the leadership of Delphine. Bertrand gets to know the rest of the team members and together they find a meaning for their lives.